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Finding the Fourth Proportional to 72,483.69, 108,681.85 and 32,495.44

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Solution

The fourth proportional to 72,483.69, 108,681.85 and 32,495.44 is: 48,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483.69 : 108,681.85 = 32,495.44 : x
  2. Step 2: Convert to fraction form
    72,483.69/108,681.85 = 32,495.44/x
  3. Step 3: Cross multiply
    72,483.69x = 108,681.85 × 32,495.44
  4. Step 4: Simplify right side
    72,483.69x = 3,531,664,454.53
  5. Step 5: Solve for x
    x = 3,531,664,454.53/72,483.69
  6. Step 6: Final answer
    x = 48,723.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.